Chinangwa chikuru chekurapa kwepamusoro pehupfu metallurgy zvikamu:
1. Kuvandudza kusapfeka kwekudzivirira
2. Kuvandudza kusimba kwemarara
3. Kuvandudza simba rekuneta

Nzira dzekurapa dzepamusoro dzinoshandiswa kune poda metallurgy zvikamu zvinogona kukamurwa kuita zvikamu zvishanu zvinotevera:
1. Kupfekedza: Ivhara pamusoro pechikamu chakagadziriswa nemucheka wezvimwe zvinhu pasina chero chemakemikari
2. Kurapa kwemakemikari epamusoro: maitiro emakemikari pakati pepamusoro pechikamu chakagadziriswa uye chekunze reactant
3. Chemical heat treatment: zvimwe zvinhu zvakadai seC uye N zvinopararira pamusoro pechikamu chakagadziriswa
4. Kurapa kwekupisa kwepamusoro: shanduko yechikamu inogadzirwa neiyo cyclic shanduko yekushisa, iyo inoshandura iyo microstructure yepasi pechikamu chakagadziriswa.
5 Mechanical deformation nzira: kugadzira mechanical deformation pamusoro pechikamu chakagadziriswa, kunyanya kubudisa compressive residual stress, uyewo kuwedzera kwepamusoro density.

Ⅰ.Coating
Electroplating inogona kushandiswa kune upfu metallurgy zvikamu, asi inogona chete kuitwa pashure upfu metallurgy zvikamu pretreated (zvakadai kunyudza mhangura kana kunyudza wakisi kunama makomba) kudzivirira kupinda electrolyte.Mushure mekurapa kweelectroplating, iyo corrosion resistance yezvikamu kazhinji inogona kuvandudzwa.Mienzaniso yakajairika ndeye galvanizing (kushandisazve chromate kuti ipfuure mushure mekufarisa kuti uwane nzvimbo nhema kana yemauto inopenya inopenya) uye nickel plating.
Electroless nickel plating yakakwirira pane electrolytic nickel plating mune zvimwe zvinhu, sekudzora ukobvu hwekujairira uye kuita kweplating.
Iyo "yakaoma" zinc yekuvhara nzira haidi kuitwa uye haidi kuiswa chisimbiso.Yakakamurwa kuita upfu galvanizing uye mechanical galvanizing.
Kana anti-rust, anti-corrosion, kutaridzika kwakanaka uye kuvharwa kwemagetsi kunodiwa, kupenda kunogona kushandiswa.Iyo nzira dzinogona kukamurwa zvakare kuita: kupfekedza kwepurasitiki, kupenya, uye kupfapfaidza simbi.

Ⅱ.Surface chemical treatment

Steam kurapwa ndiyo yakajairika pane ese epamusoro ekurapa maitiro ehupfu metallurgy zvikamu.Kupisa mutsinga ndiko kudziyisa zvikamu kusvika pa530-550°C mumhepo inopfungaira kuti ibudise magineti (Fe3O4) pamusoro pe layer.Kuburikidza neiyo oxidation yepasi pesimbi matrix, iyo yekupfeka kuramba uye friction zvivakwa zvinovandudzwa, uye zvikamu zvinodzivirira Rust performance (inowedzera kusimbiswa nekunyudzwa kwemafuta) Iyo oxide layer inosvika 0.001-0.005mm gobvu, inovhara kunze kwese kwekunze. , uye inogona kupararira kusvika pakati pechikamu kuburikidza nemapores akabatana.Kuzadzwa kwepore iyi kunowedzera kuomarara kwakajeka, nekudaro Kuvandudza kupfeka kuramba uye kuita kuti ive ine mwero dhigirii rekubatana.

Cold phosphate kurapwa ikemikari inoitika mubhati yemunyu kuti igadzire yakaoma phosphate pamusoro peiyo workpiece.Zinc phosphate inoshandiswa kupreatment of coatings neplastic coatings, uye manganese phosphate inoshandiswa mukukweshana.

Iyo bluing inoitwa nekuisa workpiece mu potassium chlorate bath pa 150 ° C nemakemikari corrosion.Pamusoro pe workpiece ine ruvara rwebhuruu yakasviba.Ukobvu hwebluing layer hunosvika 0.001mm.Mushure mokunge bluing, pamusoro pezvikamu zvakanaka uye ine anti-rust basa.

Nitriding coloring inoshandisa nitrogen yakanyorova seyo oxidant.Munguva yekutonhora kweiyo workpiece mushure mekunyura, iyo oxide layer inoumbwa mukupisa kwe200-550 ° C.Rudzi rweiyo yakaumbwa oxide layer inoshanduka nekushisa kwekugadzirisa.

Anodized anti-corrosion treatment inoshandiswa kune aluminium-based parts kuti ivandudze kutaridzika kwayo uye anti-corrosion performance.

Passivation kurapwa inoiswa kune simbi isina tsvina, kunyanya kuumba pamusoro oxide inodzivirira layer.Maokisi aya anogona kuumbwa nekudziya kana nemakemikari nzira, kureva, kunyura ne nitric acid kana sodium chlorate mhinduro.Kuti udzivise mhinduro kubva pakunyudza, kemikari Iyo nzira inoda pre-sealing wax kurapwa.